... Functions:Monitor,unlocking,night vision etc Description:Name:7 inch color LCD color video door phone;Type:One to one 5, image brightness, color and volume can be adjusted;6, the outdoor unit lens up / down ... , a call delay time: 100S ± 10%;5, monitoring the delay time: 40S ± 10%;6, the camera sensor: color 1 / 4 COMS;7, camera ...